74.3*75.7+74.3*14+74.3*10.3的简便方法
问题描述:
74.3*75.7+74.3*14+74.3*10.3的简便方法
答
74.3*75.7+74.3*14+74.3*10.3
=74.3*(75.7+14+10.3)
=74.3*100
=7430